DOWNPIPE Qs???? - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 12-04-2007, 06:15 PM Thread Starter
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DOWNPIPE Qs????

So for all of you who have downpipes on ur obs powerstrokes let me know what you think about them. how much did they help.
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post #2 of 12 Old 12-04-2007, 06:27 PM
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i have a 99 superduty but im pretty sure it works the same for all years, lower egts and faster spool up.
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post #3 of 12 Old 12-04-2007, 06:47 PM
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i dont know about lower egt's i didnt have a pyro on my truck before my downpipe install, once you get that stock on off you wonder what the hell were they thinking when they decided to crip that pipe down, i did notice a lot louder turbo whistle and seems like it did spool up faster. I would definatelly do it again, maybe next time i would like to keep my two front teeth thou


1996 Ford F350 Regular Cab 5spd with the 7.3L PSD, 4x4, 35.5x12.5x16.5 All-Terrain T/A's, 3.73s', DIY Electric Reg Return Fuel Sys, 3" Downpipe, AFE Stg 2, 17* HPOP, IDM Mod, SB Con-O, Cat and Muffler Delete, AutoMeter NV Series Boost, Fuel Press. and Pyro, Autometer 3 Pod A-Pillar, TS Performance 6 Pos Chip. HPX Mod, 335,000 Miles

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post #4 of 12 Old 12-04-2007, 06:49 PM
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imo, on obs(because of the smashed stock downpipe), they make a huge difference..... response, spool up, power, sound...

they really allow the truck to breathe better. everyone will tell you its completely worth it.

97 F350 7.3 Off-Road Build Locked on 42's

08 2500 Cummins
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post #5 of 12 Old 12-04-2007, 06:50 PM
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You will see the Diff. when you take out the old one! I thin FBD has them pretty cheep...
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post #6 of 12 Old 12-04-2007, 06:50 PM
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Try to breathe thru a straw while running, thats what the stock dp is like. Highly recommend.

96 350 Reg.cab 7.3 5sp. 4x4
3.5 to 4in dp, 4in strait pipe
4in Superlift w/ Airlift airbags on 315/75/16 Procomp X-Allterain W16x10Procomp wheels
Ba### Technicooler(the bad word)
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Superchips programer(for now)
fpr mod
d.i.y. intake
South Bend clutch

79 150 4x4 (my wheelin truck)
420ci M motor,c6
4in lift, 35x12.5x15 Mud Terains
was old driver too much $$$--6-9mpg of premium(11.5to1)
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post #7 of 12 Old 09-23-2010, 11:32 PM
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Quote:
Originally Posted by screech View Post
Try to breathe thru a straw while running, thats what the stock dp is like. Highly recommend.

96 F-250 extd cab 4x4
6637 Filter
Unplugged (soon to be gutted) EBPV
Straight piped in to 6 in tip

Upcoming mods:
3in Downpipe, TW chip, Gauges, adrenaline HPOP, Electric Fuel, BTS trans, Stage 2's/3's Modded H2E

"When injustice becomes law, resistance becomes duty." -Thomas Jefferson
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post #8 of 12 Old 09-24-2010, 11:00 AM
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Originally Posted by screech View Post
Try to breathe thru a straw while running, thats what the stock dp is like. Highly recommend.
One of the better comparisons ive heard

~Anthony~

1997 Ford F-250 173000 miles
PSD auto 4:10 gears
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post #9 of 12 Old 10-09-2010, 02:31 PM
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so, how do you get this darn thing out!!! ive been beating on **** all day and breaking my face with pry bars??

any tricks for a noobie?? thanks.

dave

95 7.3
4x4 ext cab long bed
3in down pipe
4in pipe 5in stacks
5.6k mod
cold air intake
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post #10 of 12 Old 10-09-2010, 02:39 PM
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A saws-all is your friend. Cut the top off near the turbo,and up as far as you can reach from the bottom of the truck. You will also have to cut and bend the firewall seam flat against the firewall for clearance for the new round DP

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